// pages/category/category.js

import { request } from "../../request/index";
Page({
  /**
   * 页面的初始数据
   */
  data: {
    leftMenuList: [],
    rightContent: [],
    currentIndex: 0,
    scrollTop: 0,
  },
  Cates: [],
  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    const Cates = wx.getStorageSync("cates");
    if (!Cates) {
      this.getCates();
    } else {
      if (Date.now() - Cates.times > 1000 * 10) {
        this.getCates();
      } else {
        this.Cates = Cates.data;
        let leftMenuList = this.Cates.map((v) => {
          v.cat_name;
        });
        let rightContent = this.Cates[0].children;
        this.setData({
          leftMenuList,
          rightContent,
        });
      }
    }
  },
  async getCates() {
    const res = await request({
      url: "/categories",
    });
    this.Cates = res;
    wx.setStorageSync("cates", {
      times: Date.now(),
      data: this.Cates,
    });
    let leftMenuList = this.Cates.map((v) => v.cat_name);
    let rightContent = this.Cates[0].children;
    this.setData({
      leftMenuList,
      rightContent,
    });
  },
  handleItemTap(e) {
    const { index } = e.currentTarget.dataset;
    let rightContent = this.Cates[index].children;
    this.setData({
      currentIndex: index,
      rightContent,
      scrollTop: 0,
    });
  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {},

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {},

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {},

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload: function () {},

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function () {},

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom: function () {},

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage: function () {},
});
